fix(finale): live-verification fixes — session sync on start, honest vote form, reveal panel polish

Found by driving the full ceremony end-to-end in the browser:
- live.start + startPresentation sync LiveVotingSession (status/currentProjectId)
  — jury votes silently failed when the admin never used sendToScreens
- LiveVotingForm no longer shows 'submitted' on a failed mutation; pages
  re-key on votedAt so async vote data renders the right state after refresh
- reveal compose prefers DELIB_LOCKED deliberation results over jury score
  order (listSessions now includes results); Arm unlocks right after save
- deliberation jury page review cards re-key on revision

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/components/jury/live-voting-form.tsx

@@ -90,7 +90,9 @@ export function LiveVotingForm({
     } else {
       onVoteSubmit({ score, comment: comment.trim() || undefined })
     }
-    setEditing(false)
+    // NOTE: editing is NOT flipped here — the parent re-keys this component
+    // when the persisted vote actually lands, so a failed mutation leaves the
+    // form editable instead of lying with a "submitted" state.
     setConfirmDialogOpen(false)
   }